If McCain/Bush get their 100 years in Iraq, no, our superpower status will be slowly but surely sapped by useless wars. Everyone else is making civic research stations and trade structures, but we keep making carriers thinking we will convince other people to love us by a show of force.
Decades of Republican leadership has destroyed the New Deal economic structures that made us the superpower we are. Medicare (Bush turned it into a big pharma subsidy), social security, food stamps, public universities, the GI bill, wide open immigration for scientists (Manhattan Project), financial regulations to prevent market crashes, price controls on food, subsidies to keep food prices down, intervention in the oil markets to keep prices down (Clinton used to pump from the SPR to suppress oil prices), meaningful labor laws, unions, whistle-blower protection, infrastructure development, public ownership of public paid for utilities, and high enough taxes on the rich to subsidize the construction of a greater and more powerful nation. Reagan Bush worked really hard to kill the New Deal and it is coming home to roost. To top it all off, the Reaganites, Bush, and McCain plan on committing our military to pointless wars until that is destroyed as well.